A vehicle seat assembly includes a seat back having a frame, and the frame has first and second bolster mounting portions. Each bolster mounting portion has first, second and third receptacles. The seat assembly also includes first and second bolsters selectively engageable with the first and second bolster mounting portions, respectively. Each bolster has first and second posts and is longitudinally adjustable with respect to the seat back between a first longitudinal position and a second longitudinal position. When each bolster is in the first longitudinal position, the first and second posts of the first bolster are respectively engaged with the first and second receptacles of the first bolster mounting portion, and the first and second posts of the second bolster are respectively engaged with the first and second receptacles of the second bolster mounting portion. When each bolster is in the second longitudinal position, the first and second posts of the first bolster are respectively engaged with the second and third receptacles of the first bolster mounting portion, and the first and second posts of the second bolster are respectively engaged with the second and third receptacles of the second bolster mounting portion.
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22. A vehicle seat assembly comprising:
a seat body having a seat back that includes a plurality of receptacles; and a bolster having a first engaging member that is selectively engageable with at least two receptacles such that the bolster is vertically adjustable with respect to the seat back, the bolster further including a cushioning member and a pivot mechanism connected between the cushioning member and the first engaging member such that the bolster is laterally adjustable with respect to the seat back.
27. A vehicle seat assembly comprising:
a seat body having a plurality of receptacles; and a bolster having a first engaging member that is selectively engageable with at least two receptacles such that the bolster is longitudinally adjustable along a side of the seat body; wherein each of the at least two receptacles includes a spring that is engageable with the first engaging member, the seat body includes a seat back having a side portion, and the bolster is longitudinally adjustable along the side portion of the seat back.
26. A vehicle seat assembly comprising:
a seat body having a plurality of receptacles; and a bolster having a first engaging member that is selectively engageable with at least two receptacles such that the bolster is longitudinally adjustable with respect to the seat body; wherein each of the at least two receptacles has a circumferential groove, and the first engaging member includes a retractable ball bearing that is selectively engageable with the grooves, the seat body includes a seat back having a side portion, and the bolster is longitudinally adjustable along the side portion of the seat back.
28. A vehicle seat assembly comprising:
a seat body having first, second and third receptacles; and a bolster having first and second engaging members that are selectively engageable with the receptacles such that the bolster is longitudinally adjustable with respect to the seat body between a first position and a second position different than the first position, wherein when the bolster is in the first position, the first and second engaging members are respectively engaged with the first and second receptacles, and when the bolster is in the second position, the first and second engaging members are respectively engaged with the second and third receptacles; wherein the seat body includes a seat back having first and second side portions, and the bolster is longitudinally adjustable only along one of the side portions of the seat back.
24. A vehicle seat assembly comprising:
a seat body having first, second and third receptacles; and a bolster having first and second engaging members that are selectively engageable with the receptacles such that the bolster is longitudinally adjustable with respect to the seat body between a first position and a second position different than the first position, wherein when the bolster is in the first position, the first and second engaging members are respectively engaged with the first and second receptacles, and when the bolster is in the second position, the first and second engaging members are respectively engaged with the second and third receptacles; wherein the first position is a first vertical position, and the second position is a second vertical position different than the first vertical position, and wherein the seat body includes first and second side portions and the bolster is longitudinally adjustable only along one of the side portions of the seat body.
1. A vehicle seat assembly for use with a vehicle having a floor, the vehicle seat assembly comprising:
a seat body adapted to be attached to the floor of the vehicle and having a plurality of receptacles; and a bolster having a first engaging member that is selectively engageable with at least two receptacles such that the bolster is longitudinally adjustable with respect to the seat body; wherein each of the at least two receptacles has a groove, and the first engaging member includes a retractable element selectively engageable with the grooves, and wherein the bolster further includes a release mechanism that cooperates with the retractable element to allow the retractable element to retract, the release mechanism including a trigger that is moveable between a release position and a locking position, the trigger allowing the retractable element to retract when the trigger is in the release position, and the trigger urging the retractable element outwardly when the trigger is in the locking position.
16. A vehicle seat assembly comprising:
a seat body including a seat bottom and a seat back pivotally connected to the seat bottom, the seat body further including a lockable seat back pivot mechanism connected between the seat back and the seat bottom for locking the seat back in a desired pivotal orientation with respect to the seat bottom; a bolster connected to the seat body, the bolster including a cushioning member and a pivot mechanism connected between the cushioning member and the seat body for allowing the cushioning member to pivot with respect to the seat body about a longitudinal axis, the pivot mechanism including a rack having a first pocket, and a pawl that is engageable with the first pocket so as to position the cushioning member in a first pivotal position relative to the seat body; and a release device connected between the seat body and the pawl for disengaging the pawl from the pocket so that the cushioning member may pivot outwardly with respect to the seat body, wherein the release device is further connected to the seat back pivot mechanism and is operable to release the seat back pivot mechanism so that the seat back and seat bottom may be folded together.
14. A vehicle seat assembly comprising:
a seat back having a frame, the frame having first and second bolster mounting portions, each bolster mounting portion having first, second and third receptacles; and first and second bolsters engageable with the first and second bolster mounting portions, respectively, each bolster having first and second posts and being longitudinally adjustable with respect to the seat back between a first longitudinal position and a second longitudinal position, wherein when each bolster is in the first longitudinal position, the first and second posts of the first bolster are respectively engaged with the first and second receptacles of the first bolster mounting portion, and the first and second posts of the second bolster are respectively engaged with the first and second receptacles of the second bolster mounting portion, and wherein when each bolster is in the second longitudinal position, the first and second posts of the first bolster are respectively engaged with the second and third receptacles of the first bolster mounting portion, and the first and second posts of the second bolster are respectively engaged with the second and third receptacles of the second bolster mounting portion.
18. A vehicle seat assembly comprising:
a seat body having a seat bottom and a seat back pivotally connected to the seat bottom; a pair of upper bolsters connected on opposite sides of the seat back, each of the bolsters including a support structure connected to the seat body, a bolster body, and a ratcheting mechanism connected between the support structure and the bolster body for allowing the bolster body to pivot with respect to the seat back about a longitudinal axis, each ratcheting mechanism including a rack having a plurality of rack teeth, and a pawl that is selectively engageable with the rack teeth such that each ratcheting mechanism provides inward ratcheting pivotal movement of a respective bolster body while locking the respective bolster body against pivotal movement in an outward direction, each ratcheting mechanism further including a biasing member for urging a respective bolster body in the outward direction; a pair of lower bolsters pivotally connected on opposite sides of the seat bottom, each lower bolster being pivotable inwardly and outwardly; and a release device connected between the seat body and the pawls for disengaging the pawls from the racks so that each bolster body may pivot in the outward direction, thereby allowing the seat back and seat bottom to be folded together, wherein the release device is further connected to the lower bolsters and is operable to allow each bolster to pivot outwardly.
23. A vehicle seat assembly comprising:
a seat body having a seat bottom and a seat back pivotally connected to the seat bottom, wherein the seat body includes a lockable pivot mechanism connected between the seat back and the seat bottom for locking the seat back in a desired pivotal orientation with respect to the seat bottom; a pair of upper bolsters connected on opposite sides of the seat back, each of the bolsters including a support structure connected to the seat body, a bolster body, and a ratcheting mechanism connected between the support structure and the bolster body for allowing the bolster body to pivot with respect to the seat back, each ratcheting mechanism including a rack having a plurality of rack teeth, and a pawl that is selectively engageable with the rack teeth such that each ratcheting mechanism provides inward ratcheting pivotal movement of a respective bolster body while locking the respective bolster body against pivotal movement in an outward direction, each ratcheting mechanism further including a biasing member for urging a respective bolster body in the outward direction; and a release device connected to the pivot mechanism and operable to release the pivot mechanism so that the seat back and seat bottom may be folded together, wherein the release device is further connected between the seat body and the pawls for disengaging the pawls from the racks so that each bolster body may pivot in the outward direction, thereby allowing the seat back and seat bottom to be folded together.
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The invention relates to adjustable seat bolsters for use with a motor vehicle.
Typically, vehicle seat assemblies are provided with side bolsters that are not adjustable. More recently, seat assemblies have been developed with side bolsters that provide limited lateral adjustability. For example, U.S. Pat. No. 5,938,284 discloses a seat assembly having a bolster and an adjustment mechanism for adjusting the support and/or lateral position of the bolster relative to a seat back. The adjustment mechanism includes a positioning member that is positionable between adjacent ribs to form a stop limit.
Under the invention, a vehicle seat assembly includes a seat body having a plurality of receptacles, and a bolster having a first engaging member that is selectively engageable with at least two receptacles such that the bolster is longitudinally adjustable with respect to the seat body. Advantageously, with such a configuration, the bolster may be adjusted to provide optimum support and comfort to various different seat occupants.
Preferably, each of the at least two receptacles has a groove, and the first engaging member includes a retractable element that is selectively engageable with the grooves. The bolster may also be provided with a release mechanism that cooperates with the retractable element to allow the retractable element to retract.
The seat body may include a seat back that includes the plurality of receptacles. Under this embodiment, the bolster is vertically adjustable with respect to the seat back. Furthermore, the plurality of receptacles may include first, second and third receptacles, and the bolster may be provided with a second engaging member that is selectively engageable with the receptacles. With such a configuration, when the bolster is in a first vertical position, the first and second engaging members are respectively engaged with the first and second receptacles. Furthermore, when the bolster is in a second vertical position different than the first vertical position, the first and second engaging members are respectively engaged with the second and third receptacles.
Advantageously, the vehicle seat assembly may be provided with any suitable number of receptacles to achieve a desired adjustability of the bolster. For example, the seat back may include a fourth receptacle for allowing the bolster described above to be adjusted to a third vertical position.
Furthermore, the bolster may include a cushioning member and a pivot mechanism connected between the cushioning member and the first engaging member such that the bolster is laterally adjustable with respect to the seat back.
Further under the invention, a vehicle seat assembly includes a seat back having a frame. The frame has first and second bolster mounting portions, and each bolster mounting portion has first, second and third receptacles. The seat assembly also includes first and second bolsters selectively engageable with the first and second bolster mounting portions, respectively. Each bolster has first and second posts and is longitudinally adjustable with respect to the seat back between a first longitudinal position and a second longitudinal position. When each bolster is in the first longitudinal position, the first and second posts of the first bolster are respectively engaged with the first and second receptacles of the first bolster mounting portion, and the first and second posts of the second bolster are respectively engaged with the first and second receptacles of the second bolster mounting portion. When each bolster is in the second longitudinal position, the first and second posts of the first bolster are respectively engaged with the second and third receptacles of the first bolster mounting portion, and the first and second posts of the second bolster are respectively engaged with the second and third receptacles of the second bolster mounting portion.
According to another aspect of the invention, a vehicle seat assembly includes a seat body and a bolster connected to the seat body. The bolster includes a cushioning member and a pivot mechanism connected between the cushioning member and the seat body for allowing the cushioning member to pivot with respect to the seat body. The pivot mechanism includes a rack having a first pocket, and a pawl that is engageable with the first pocket so as to position the cushioning member in a first pivotal position relative to the seat body. The seat assembly further includes a release device connected between the seat body and the pawl for disengaging the pawl from the pocket so that the cushioning member may pivot outwardly with respect to the seat body.
Preferably, the release device includes a release lever moveably connected to the seat body, and a cable connected between the release lever and the pawl.
More specifically, a vehicle seat assembly includes a seat body having a seat bottom and a seat back pivotally connected to the seat bottom. A pair of upper bolsters is connected on opposite sides of the seat back. Each bolster includes a bolster body, a support structure connected to the seat body, and a ratcheting mechanism connected between the support structure and the bolster body for allowing the bolster body to pivot with respect to the seat back. Each ratcheting mechanism includes a rack having a plurality of rack teeth, and a pawl that is selectively engageable with the rack teeth such that each ratcheting mechanism provides inward ratcheting pivotal movement of a respective bolster body while locking the respective bolster body against pivotal movement in an outward direction. Each ratcheting mechanism further includes a biasing member for urging a respective bolster body in the outward direction. The seat assembly further includes a release device connected between the seat body and the pawls for disengaging the pawls from the racks so that each bolster body may pivot in the outward direction, thereby allowing the seat back and seat bottom to be folded together.
The seat body may also include a lockable pivot mechanism connected between the seat back and the seat bottom for locking the seat back in a desired pivotal orientation with respect to the seat bottom. Preferably, the release device is also connected to the pivot mechanism and is operable to release the pivot mechanism so that the seat back and seat bottom may be folded together.
These and other objects, features and advantages of the invention are readily apparent from the following detailed description of the best modes for carrying out the invention when taken in conjunction with the accompanying drawings.
Referring to the Figures, wherein like numerals reference like parts,
Referring to
Each bolster mounting bracket 36 and 38 has a plurality of receptacles, including first, second, third and fourth receptacles 40, 42, 44 and 46. Each receptacle 40-46 preferably includes a spring 48 and a circumferential groove 50.
The upper bolsters 24 and 26 are preferably similar in construction and function. Thus, while this detailed description will focus primarily on the construction and operation of the first upper bolster 24, a thorough understanding of the second upper bolster 26 will be apparent therefrom. Referring to
The bolster support assembly 54 includes a support structure 62 that extends into the groove 59, and is attached to the bolster body 55 such as with the fasteners 58. The bolster support assembly 54 further includes first and second engaging members, such as first and second pins or posts 63 and 64, respectively, connected to the support structure 62. Each post 63 and 64 includes a post body 65 having a plurality of openings, and a plurality of retractable elements or projections, such as ball bearings 66, moveably disposed in the openings of the post body 65. Each ball bearing 66 has a diameter that is preferably slightly larger than a minimum diameter of a corresponding opening in a respective post body 65, so that the ball bearings 66 cannot be released from the post bodies 65. The posts 63 and 64 are insertable into the receptacles 40-46 of the first bolster mounting bracket 36, and the ball bearings 66 are engageable with the grooves 50 so as to lock the first upper bolster 24 to the frame assembly 28 at a desired vertical location.
The bolster support assembly 54 also includes a release mechanism 68 that is operable to allow the ball bearings 66 to retract. The release mechanism 68 preferably includes a trigger 70 having a pair of legs 72 that extend into the posts 63 and 64. The trigger 70 is moveable with respect to the posts 63 and 64 between a first or release position shown in
To mount the first upper bolster 24 to the frame assembly 28, the trigger 70 is first moved to the release position in any suitable manner, such as by manually squeezing the trigger 70 while also gripping a cross member 80. When the trigger 70 is in the release position, the posts 63 and 64 may be inserted into two of the receptacles 40-46. The trigger 70 may then be moved to the locking position, such as by releasing the trigger 70 and allowing the springs 74 to urge the trigger 70 to the locking position. When the trigger 70 is in the locking position, the ball bearings 66 are urged into engagement with the grooves 50. The trigger 70 may then be squeezed again in order to allow the ball bearings 66 to retract from the grooves 50 so that the first upper bolster 24 may be removed from the frame assembly 28. The first upper bolster 24 may then be longitudinally or vertically adjusted along the frame assembly 28.
With such a configuration, the first upper bolster 24 may be moved between a first or lower position, shown in
Referring to
The ratchet mechanism 105 is disposed in the cavity 112 and is operatively connected between the support structure 62 and the bolster body 109 for providing inward or forward ratcheting pivotal movement of the bolster cushion 106 relative to the support structure 62, while locking the bolster cushion 106 against outward or rearward pivotal movement. The ratcheting mechanism 105 includes a ratchet 117 pivotally coupled to the support structure 62, and a rack 118 fixedly secured to the base 110 and having a plurality of rack teeth 120 that define a plurality of notches or pockets 122. Preferably, the rack 118 is integrally formed as part of the base 110.
The ratchet 117 comprises a support member 124 welded or otherwise fixedly secured to the support structure 60, and having a pivot aperture 126. A pawl 128 is pivotally coupled to the support member 124 for selectively engaging the rack teeth 120. For example, the pawl 128 may be connected to the support member 124 with a pivot pin that extends through the pivot aperture 126.
The pawl 128 has a rack engaging portion 130, a support member engaging portion 132 and a spring attachment tab 134. The rack engaging portion 130 includes an inclined camming surface 136 facing rearwardly that is engageable with inclined camming surfaces 138 of the rack teeth 120. The camming surfaces 136 and 138 cooperate to enable the bolster cushion 106 to pivot forwardly. The rack engaging portion 130 also includes a first locking surface 140 facing forwardly that is engageable with rearwardly facing locking surfaces 142 of the rack teeth 120 to inhibit the bolster cushion 106 from pivoting rearwardly. The support member engaging portion 132 has a second locking surface 144 that is engageable with an inner locking surface 146 of the support member 124.
The ratchet mechanism 105 further includes first and second biasing members or springs 148 and 150, respectively. The first spring 148 has one end connected to the support member 124 and an opposite end connected to the spring attachment tab 134 for biasing the pawl 128 toward an upstanding operational position shown in FIG. 11. The second spring 150 is preferably a torsion spring that urges the bolster cushion 106 toward rearward pivotal movement. The second spring 150 has one end that engages the support member 124, and an opposite end that engages an inner surface of the cavity 112.
With reference to
When the bolster cushion 106 is rotated completely forwardly, as shown in
The pivot mechanism 208 includes an inner rod 218 connected to the seat bottom 204 and an outer tube 220 connected to the seat back 206 and rotatably coupled to the inner rod 218. The inner rod 218 has a first aperture 222, and the outer tube 220 has a second aperture 224 alignable with the first aperture 222. An engaging member 226 is disposable in the apertures 222 and 224, and is moveable between a engaging or locking position shown in phantom lines in
The bolsters 210-216 are preferably similar in construction and function. Thus, while this detailed description will focus primarily on the construction and operation of the first upper bolster 214, a thorough understanding of the second upper bolster 216 and the lower bolsters 210 and 212 will be apparent therefrom. Referring to
The ratchet mechanism 232 is similar to the ratchet mechanism 105, and includes the rack 118 and a ratchet 240 connected to the support structure 234. The ratchet 240 includes a support member 242 welded or otherwise fixedly secured to the support structure 234, and having an elongated pivot aperture 244 extending therethrough. A pawl 246 is pivotally coupled to the support member 242 for selectively engaging rack teeth 120 of the rack 118. Fore example, the pawl 246 may be connected to the support member 242 with a pivot pin 248 and a pair of non-rotatable bushings 249 (only one bushing 249 is shown in
The pawl 246 is connected to a release device, as explained below in greater detail, which is operable for moving the pawl 246 along the aperture 244 between an operational position shown in
Referring to
A first cable 274 extends from the first aperture 262, through the first tab 268 and to the engaging member 226 of the pivot mechanism 208. A second cable 276 is connected at opposite ends to the pawls 246 of the upper bolsters 214 and 216, and extends through the second tabs 270 and the second aperture 264 of the release lever 254. A third cable 278 is connected at opposite ends to the pawls 246 of the lower bolsters 210 and 212, and extends through the third tabs 272 and the third aperture 266 of the release lever 254. Depending on the location of the connections to the pawls 246, the cables 276 and 278 may need to be provided with some slack in order to allow the pawls 246 to rotate. Alternatively, the cables 276 and 278 may be connected to the bushings 249 of the bolsters 210-216.
When handle portion 258 of the release lever 254 is rotated upwardly, the first cable 274 moves the engaging member 226 to the release position so that the seat back 206 may rotate toward the seat bottom 204. In addition, when the handle portion 258 is rotated upwardly, the second and third cables move the pawls 246 of the bolsters 210-216 to their respective release positions so that the bolster cushions 106 of the bolsters 210-216 may rotate outwardly as shown in FIG. 15. As a result, the seat back 206 may be folded flat against the seat bottom 204. As explained above, torsion springs may be provided to facilitate movement of the various components. For example, each bolster 210-216 preferably includes a torsion spring, similar to the torsion spring 150, for urging a respective bolster cushion 106 outwardly.
When the release lever 254 is rotated downwardly, the pawls 246 return to their respective operational positions. Furthermore, when the seat back 206 is rotated away from the seat bottom 204 so that the apertures 222 and 224 of the pivot mechanism 208 align with each other, the engaging member 226 may return to the locking position.
While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention.
Sims, John R., Mysliwiec, Todd A., Fraley, Gregory S.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 06 2000 | Lear Corporation | (assignment on the face of the patent) | / | |||
Sep 12 2001 | FRALEY, GREGORY S | Lear Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012190 | /0929 | |
Sep 14 2001 | SIMS, JOHN R | Lear Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012190 | /0929 | |
Sep 17 2001 | MYSLIWIEC, TODD A | Lear Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012190 | /0929 | |
Apr 25 2006 | Lear Corporation | JPMORGAN CHASE BANK, N A , AS GENERAL ADMINISTRATIVE AGENT | SECURITY AGREEMENT | 017858 | /0719 | |
Aug 30 2010 | JPMORGAN CHASE BANK, N A | Lear Corporation | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 032722 | /0553 | |
Jan 04 2016 | JPMORGAN CHASE BANK, N A , AS AGENT | Lear Corporation | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 037731 | /0918 |
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